Campbell’s Mona Monkey

• Common Name: Campbell’s Mona Monkey
• Taxonomy Classification Year: 1838
• Monkey Size: 32 to 53 cm (16 to 21 in)
• Skin Color(s): Brownish-yellow and white
• Habitat: Forests
• Diet: Omnivorous
• Native Countries: Ivory Coast, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Senegal, Sierra Leone

Campbell’s Mona monkey^[1], also called the Campbell’s monkey or Campbell’s guenon is a primate species in the Cercopithecidae family.

• Campbell’s Mona monkeys are interesting coloration with black or gray legs, arms, lower back, a tan-yellow upper back, and a large, puffy white ruff on the chest.
• The upper half of the face is yellow, and the sides are grey. Half of their face is bare and primarily gray, with pink under the nose.
• Their amber eyes are expressive and large. They have a long, thin black tail that helps them move around the forest.
• Aside from the larger size of males, there is no sexual dimorphism.

The Campbell’s Mona Monkeys consume Velvet Tamarind (Dialium guineense) and African Oil Palm (Elaeis guineensis) as their regular diet including many other plant sources^[¶].

• The species was named after Henry Dundas Campbell in 1838.
• Females within the group tend to be very close socially, with males less likely to interact with other group members. Instead, his role focuses more on defending the group and conducting travel.
• Campbell’s Mona monkeys have vocalizations equivalent to a human’s “Timber!” when a tree falls over. It was described as “boom boom krak-oo krak-oo“.
• Groups of Campbell’s mona monkeys usually consist of one male and several females. However, groups of single males and several males and females have also been observed.
• Females, who make up the majority of adults in a group, communicate extensively with each other, both vocally and physically.